Počet záznamů: 1
Magnetic mapping of distribution of wood ash used for fertilization of forest soil
0486295 - GFU-E 2019 RIV NL eng J - Článek v odborném periodiku
Petrovský, Eduard - Remeš, J. - Kapička, Aleš - Podrázský, V. - Grison, Hana - Borůvka, L.
Magnetic mapping of distribution of wood ash used for fertilization of forest soil.
Science of the Total Environment. Roč. 626, June (2018), s. 228-234 ISSN 0048-9697
Institucionální podpora: RVO:67985530
Klíčová slova: forest soil * wood ash * fertilizing * tree plants * iron oxides * rock magnetism
Kód oboru RIV: DE - Zemský magnetismus, geodézie, geografie
Impakt faktor: 4.900, rok: 2016
The effect of wood-ash fertilization on forest soils has been assessed mainly through geochemical methods (e.g.,
content of soil organic matter or nutrients). However, a simple and fastmethod of determining the distribution of
the ash and the extent of affected soil is missing. In this studywe present the use ofmagnetic susceptibility,which
is controlled by Fe-oxides, in comparing the fertilized soil in the forest plantation of pine and oakwith intact forest
soil. Spatial and vertical distribution of magnetic susceptibility was measured in an oak and pine plantation
next to stems of young plants,where wood ash was applied as fertilizer. Pattern of the susceptibility distribution
was compared with that in non-fertilized part of the plantation as well as with a spot of intact natural forest soil
nearby. Our results showthat thewood-ash samples contain significant amount of ferrimagneticmagnetitewith
susceptibility higher than that of typical forest soil. Clear differences were observed betweenmagnetic susceptibility
of furrows and ridges.Moreover, the dispersed ash remains practically on the surface, does not penetrate to
deeper layers. Finally, our data suggest significant differences in surface values between the pine and oak plants.
Based on this study we may conclude that magnetic susceptibility may represent a simple and approximate
method of assessing the extent of soil affected by wood-ash.
Trvalý link: http://hdl.handle.net/11104/0281155